[W100DEBA], Legal Testimony, Thomas Alva Edison, April 29th, 1881
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Title
[W100DEBA], Legal Testimony, Thomas Alva Edison, April 29th, 1881
Editor's Notes
"Preliminary statement of Edison Issue-- 'In a Sprengel Air Pump the Mercury supply tube having formed integral therewith a contraction above the fall tube for regulating the flow of mercury' I first employed this invention at Menlo Park New Jersey about and during the fall of 1878 using water as this exhausting agent. In the summer of 1879 I used it with mercury as the active agent. This was before said Bohm had visited Menlo Park or entered my employ."
Author
Mentioned
Date
1881-04-29
Type
Subject
Folder/Volume ID
W100DEB-F
Document ID
W100DEBA
Rights
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University